/*
* @Author: wanghongfucoder
* @Date:   2017-03-23 10:04:48
* @Last Modified by:   wanghongfucoder
* @Last Modified time: 2017-03-23 10:10:28
*/

public class Demo {
	public static void main(String[] args) {
		Context context=new Context(new OperationAdd());
		System.out.println("10+5="+context.executeStrategy(10,5));
		context=new Context(new OperationSubstract());
		System.out.println("10-5="+context.executeStrategy(10,5));
		context=new Context(new OperationMultiply());
		System.out.println("10*5="+context.executeStrategy(10,5));
	}
}